Home / 7,780.32-11,671.97-2,516.74

Finding the Fourth Proportional to 7,780.32, 11,671.97 and 2,516.74

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Solution

The fourth proportional to 7,780.32, 11,671.97 and 2,516.74 is: 3,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.32 : 11,671.97 = 2,516.74 : x
  2. Step 2: Convert to fraction form
    7,780.32/11,671.97 = 2,516.74/x
  3. Step 3: Cross multiply
    7,780.32x = 11,671.97 × 2,516.74
  4. Step 4: Simplify right side
    7,780.32x = 29,375,272.01
  5. Step 5: Solve for x
    x = 29,375,272.01/7,780.32
  6. Step 6: Final answer
    x = 3,775.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.